Shirt retaining strap set



FIG. 1 is a top plan view of the shirt retaining strap set showing my new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is an end elevational view of one of the straps. 

The new ornamental design for shirt retaining strap set, as shown and described. 